Cisco Security Advisory: Cisco Video Surveillance IP Gateway and Services Platform Authentication Vulnerabilities
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Cisco Security Advisory: Cisco Video Surveillance IP Gateway and
Services Platform Authentication Vulnerabilities
Advisory ID: cisco-sa-20070905-video
http://www.cisco.com/warp/public/707/cisco-sa-20070905-video.shtml
Revision 1.0
For Public Release 2007 September 5 1600 UTC (GMT)
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Summary
=======
Cisco Video Surveillance IP Gateway video encoder and decoder, Services
Platform (SP), and Integrated Services Platform (ISP) devices contain
authentication vulnerabilities that allow remote users with network
connectivity to gain the complete administrative control of vulnerable
devices. There are no workarounds for these vulnerabilities.
Cisco has made free software available to address these vulnerabilities
for affected customers.
This advisory is posted at
http://www.cisco.com/warp/public/707/cisco-sa-20070905-video.shtml.
Affected Products
=================
Vulnerable Products
+------------------
These products are vulnerable:
* Cisco Video Surveillance IP Gateway Encoder/Decoder (Standalone
and Module) firmware version 1.8.1 and earlier
* Cisco Video Surveillance SP/ISP Decoder Software firmware version
1.11.0 and earlier
* Cisco Video Surveillance SP/ISP firmware version 1.23.7 and
earlier
Users should consult their Stream Manager configuration management
tool to determine the versions of firmware installed on deployed video
surveillance devices.
Products Confirmed Not Vulnerable
+--------------------------------
No other Cisco products are currently known to be affected by these
vulnerabilities.
Details
=======
Cisco Video Surveillance IP Gateway video encoders and decoders allow
the video feeds of cameras to be sent over an IP network. This function
provides an upgrade path for users to convert from existing analog
surveillance systems. Cisco Video Surveillance Services Platforms and
Integrated Services Platforms record and aggregate video feeds received
from IP Gateways. Stored video can be viewed and manipulated using the
Cisco Video Surveillance Stream Manager software.
* IP Gateway Encoder/Decoder Telnet Authentication Vulnerability:
The Telnet server installed on Cisco Video Surveillance IP Gateway
video encoders and decoders does not prompt for authentication.
This may allow a remote user with network connectivity to gain
interactive shell access with administrative privileges on
vulnerable devices. This issue is documented in Cisco Bug ID
CSCsj31729.
* Services Platform/Integrated Services Platform Default
Authentication Vulnerability:
Cisco Video Surveillance Services Platform and Integrated Services
Platform devices ship with default passwords for the sypixx and
root user accounts. Users are not able to change these passwords
due to application requirements. Users with knowledge of the
default passwords may be able to gain interactive shell access with
administrative privileges to vulnerable devices. This issue is
documented in Cisco Bug ID CSCsj34681.
Vulnerability Scoring Details
+----------------------------
Cisco is providing scores for the vulnerabilities in this advisory based
on the Common Vulnerability Scoring System (CVSS). The CVSS scoring in
this Security Advisory is done in accordance with CVSS version 2.0.
Cisco will provide a base and temporal score. Customers can then
compute environmental scores to assist in determining the impact of the
vulnerabilities in individual networks.
CVSS is a standards based scoring method that conveys vulnerability
severity and helps determine urgency and priority of response.
Cisco has provided a FAQ to answer additional questions regarding VSS at
http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html
Cisco has also provided a CVSS calculator to help compute the
environmental impact for individual networks at
http://intellishield.cisco.com/security/alertmanager/cvss
CSCsj31729 - Encoder/Decoder Telnet Daemon Fails to Authenticate
CVSS Base Score - 10.0
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - Complete
Integrity Impact - Complete
Availability Impact - Complete
CVSS Temporal Score - 8.7
Exploitability - High
Remediation Level - Official-Fix
Report Confidence - Confirmed
CSCsj34681 - Services Platform Contains Default Authentication Credentials
CVSS Base Score - 9.0
Access Vector - Network
Access Complexity - Low
Authentication - Single Instance
Confidentiality Impact - Complete
Integrity Impact - Complete
Availability Impact - Complete
CVSS Temporal Score - 7.8
Exploitability - High
Remediation Level - Official-Fix
Report Confidence - Confirmed
Impact
======
Successful exploitation of these vulnerabilities will result in the
ability for a remote user to gain complete administrative access to
vulnerable devices. An attacker with access to a vulnerable device may
be able to view, alter, or delete video streams processed by the device,
or cause a denial of service that may result in the loss of surveillance
coverage.
Software Versions and Fixes
===========================
When considering software upgrades, also consult
http://www.cisco.com/go/psirt and any subsequent advisories to determine
exposure and a complete upgrade solution.
In all cases, customers should exercise caution to be certain the
devices to be upgraded contain sufficient memory and that current
hardware and software configurations will continue to be supported
properly by the new release. If the information is not clear, contact
the Cisco Technical Assistance Center ("TAC") or your contracted
maintenance provider for assistance.
Workarounds
===========
There are no workarounds for these vulnerabilities.
Filtering traffic to affected systems on screening devices can be used
as a mitigation technique for both vulnerabilities. Access to the Telnet
service (TCP port 23) on vulnerable devices should be restricted to
authorized administration workstations.
There is currently no method to configure filtering directly on IP
Gateway encoders and decoders or Services Platform devices.
Filters blocking access to TCP port 23 should be deployed at the network
edge as part of a transit access list, which will protect the router
where the access control list (ACL) is configured and also other devices
behind it. Further information about transit access control lists is
available in the white paper Transit Access Control Lists: Filtering at
Your Edge, which is available at the following link:
http://www.cisco.com/en/US/tech/tk648/tk361/technologies_white_paper09186a00801afc76.shtml
Additional mitigations that can be deployed on Cisco devices within
the network are available in the Cisco Applied Intelligence companion
document for this advisory:
http://www.cisco.com/warp/public/707/cisco-air-20070905-video.shtml
Obtaining Fixed Software
========================
Prior to deploying software, customers should consult their maintenance
provider or check the software for feature set compatibility and known
issues specific to their environment.
Customers may only install and expect support for the feature
sets they have purchased. By installing, downloading, accessing
or otherwise using such software upgrades, customers agree to
be bound by the terms of Cisco's software license terms found
at http://www.cisco.com/public/sw-license-agreement.html,
or as otherwise set forth at Cisco.com Downloads at
http://www.cisco.com/public/sw-center/sw-usingswc.shtml.
Do not contact either "psirt@xxxxxxxxx" or "security-alert@xxxxxxxxx"
for software upgrades.
Customers with vulnerable devices should contact the Cisco TAC or their
primary support organization to obtain fixed software and upgrade
instructions.
+------------------------------------------------------------+
| Device | Vulnerable | Fixed |
| | Firmware | Firmware |
|---------------------------------+--------------+-----------|
| Cisco Video Surveillance IP | 1.8.1 and | 1.9.4 |
| Gateway Encoder/Decoder | earlier | |
|---------------------------------+--------------+-----------|
| Cisco Video Surveillance SP/ISP | 1.11.0 and | 1.16.0 |
| Decoder Software | earlier | |
|---------------------------------+--------------+-----------|
| Cisco Video Surveillance SP/ISP | 1.23.7 and | 1.26.0 |
| | earlier | |
+------------------------------------------------------------+
Customers with Service Contracts
+-------------------------------
Customers with contracts should obtain upgraded software through their
regular update channels. For most customers, this means that upgrades
should be obtained through the Software Center on Cisco's worldwide
website at http://www.cisco.com.
Customers using Third Party Support Organizations
+------------------------------------------------
Customers whose Cisco products are provided or maintained through prior
or existing agreement with third-party support organizations such as
Cisco Partners, authorized resellers, or service providers should
contact that support organization for guidance and assistance with the
appropriate course of action in regards to this advisory.
The effectiveness of any workaround or fix is dependent on specific
customer situations such as product mix, network topology, traffic
behavior, and organizational mission. Due to the variety of affected
products and releases, customers should consult with their service
provider or support organization to ensure any applied workaround or fix
is the most appropriate for use in the intended network before it is
deployed.
Customers without Service Contracts
+----------------------------------
Customers who purchase direct from Cisco but who do not hold a Cisco
service contract and customers who purchase through third-party vendors
but are unsuccessful at obtaining fixed software through their point
of sale should get their upgrades by contacting the Cisco Technical
Assistance Center (TAC). TAC contacts are as follows.
* +1 800 553 2447 (toll free from within North America)
* +1 408 526 7209 (toll call from anywhere in the world)
* e-mail: tac@xxxxxxxxx
Have your product serial number available and give the URL of this
notice as evidence of your entitlement to a free upgrade. Free upgrades
for non-contract customers must be requested through the TAC.
Refer to http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml
for additional TAC contact information, including special localized
telephone numbers and instructions and e-mail addresses for use in
various languages.
Exploitation and Public Announcements
=====================================
The Cisco PSIRT is not aware of any public announcements or malicious
use of the vulnerability described in this advisory.
These vulnerabilities were internally discovered by Cisco.
Status of this Notice: Final
============================
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY
ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE
INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS
AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS
DOCUMENT AT ANY TIME.
A stand-alone copy or Paraphrase of the text of this document that omits
the distribution URL in the following section is an uncontrolled copy,
and may lack important information or contain factual errors.
Distribution
============
This advisory is posted on Cisco's worldwide website at:
http://www.cisco.com/warp/public/707/cisco-sa-20070905-video.shtml
In addition to worldwide web posting, a text version of this notice is
clear-signed with the Cisco PSIRT PGP key and is posted to the following
e-mail and Usenet news recipients.
* cust-security-announce@xxxxxxxxx
* first-teams@xxxxxxxxx
* bugtraq@xxxxxxxxxxxxxxxxx
* vulnwatch@xxxxxxxxxxxxx
* cisco@xxxxxxxxxxxxxxxxx
* cisco-nsp@xxxxxxxxxxxxxxx
* full-disclosure@xxxxxxxxxxxxxxxxx
* comp.dcom.sys.cisco@xxxxxxxxxxxxxxxxxx
Future updates of this advisory, if any, will be placed on Cisco's
worldwide website, but may or may not be actively announced on mailing
lists or newsgroups. Users concerned about this problem are encouraged
to check the above URL for any updates.
Revision History
================
+-----------------------------------------------------------+
| Revision 1.0 | 2007-Sept-05 | Initial public release |
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Cisco Security Procedures
=========================
Complete information on reporting security vulnerabilities
in Cisco products, obtaining assistance with security
incidents, and registering to receive security information
from Cisco, is available on Cisco's worldwide website at
http://www.cisco.com/en/US/products/products_security_vulnerability_policy.html.
This includes instructions for press inquiries regarding
Cisco security notices. All Cisco security advisories are available at
http://www.cisco.com/go/psirt.
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All contents are Copyright 2006-2007 Cisco Systems, Inc. All rights
reserved.
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Updated: Sep 05, 2007 Document ID: 97819
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